Celebes Rainbowfish (Marosatherina Ladigesi)
The Celebes Rainbowfish, also known as Celebes Sailfin, is a captivating freshwater fish native to the island of Sulawesi in Indonesia. This elegant species features a slender, elongated body with a shimmering silver-blue coloration and dark, horizontal lines running along the length of their body. Males display more intense colors and have larger dorsal and anal fins compared to females.
Celebes Rainbowfish grow to approximately 3-4 inches in length and have a peaceful and somewhat shy temperament. They thrive in groups of 6 or more, which promotes their natural schooling behavior and reduces stress. They are compatible with a range of peaceful tank mates, such as other rainbowfish, tetras, rasboras, and small catfish species.
An omnivorous diet suits these fish, consisting of high-quality flakes or pellets, as well as live or frozen foods like brine shrimp, daphnia, and bloodworms.
Celebes Rainbowfish prefer a well-planted tank with ample swimming space and hiding spots, mimicking their natural habitat. Rainbowfish are active swimmers and require an aquarium with plenty of room to move about and abundant plant life to give them a sense of security. Their natural habitat features various leggy plants like Dwarf Sagittaria, Vallisneria, and Anubias, which are easy for the fish to navigate through. When arranging the plants, ensure to leave unobstructed open swimming areas. A substrate consisting of rocks or sand with driftwood can help recreate their native environment, but the tank floor is of lesser importance, as they usually swim in the middle levels. The addition of floating plants to diffuse the light entering the tank also seems to be appreciated and adds a more natural feel.
Maintaining a clean and well-oxygenated tank is crucial for Celebes Rainbowfish, as their water should be free from nitrates and ammonia. They prefer moderate water currents and appreciate a substantial water flow, making a power filter an excellent choice for their aquarium.
A minimum tank size of 30 gallons is recommended, with 40 gallons or larger in community aquariums. The ideal water parameters for these fish include a pH of 7.0-8.5, a hardness of 5-15 dGH, and a temperature range of 72-79°F (22-26°C).
Do not add this fish to a biologically immature aquarium, as it can be susceptible to swings in water chemistry.
To learn more about this fish, be sure to check out the Additional Information tab.